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API & HTTP Tools

API & HTTP Tools brings together useful utilities for people who need quick results without installing separate apps. Use this category to find related tools, open the best match, and finish the task with clean output. Explore API & HTTP Tools when you want a focused set of tools instead of searching through the full library. Each utility is built around a clear input, practical options, and output that is easy to copy or reuse.

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Tools in this category

45 tools available

All active tools in this category are shown below. Open a utility and use sample data to test it quickly.

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API Request Builder API Request Builder with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow helpe… ↗
API Request Tester API Request Tester with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow helper… ↗
REST Endpoint Tester REST Endpoint Tester with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow help… ↗
GraphQL Query Formatter GraphQL Query Formatter with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow h… ↗
GraphQL Query Minifier GraphQL Query Minifier with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow he… ↗
GraphQL to cURL Converter GraphQL to cURL Converter with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow… ↗
cURL Builder cURL Builder with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow helpers. ↗
cURL Formatter cURL Formatter with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow helpers. ↗
cURL Command Splitter cURL Command Splitter with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow hel… ↗
cURL to Python Requests cURL to Python Requests with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow h… ↗
cURL to Node Axios cURL to Node Axios with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow helper… ↗
cURL to Node Fetch cURL to Node Fetch with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow helper… ↗
cURL to PHP Guzzle cURL to PHP Guzzle with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow helper… ↗
cURL to Java OkHttp cURL to Java OkHttp with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow helpe… ↗
cURL to C# HttpClient cURL to C# HttpClient with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow hel… ↗
Fetch to cURL Converter Fetch to cURL Converter with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow h… ↗
HTTP Status Code Lookup HTTP Status Code Lookup with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow h… ↗
HTTP Cache Header Checker HTTP Cache Header Checker with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow… ↗
CORS Header Checker CORS Header Checker with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow helpe… ↗
CORS Header Generator CORS Header Generator with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow hel… ↗
Webhook Payload Formatter Webhook Payload Formatter with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow… ↗
Webhook Signature Helper Webhook Signature Helper with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow… ↗
JSON API Response Viewer JSON API Response Viewer with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow… ↗
OpenAPI YAML Formatter OpenAPI YAML Formatter with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow he… ↗
OpenAPI JSON Formatter OpenAPI JSON Formatter with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow he… ↗
OpenAPI Endpoint Extractor OpenAPI Endpoint Extractor with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflo… ↗
Postman Collection to cURL Postman Collection to cURL with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflo… ↗
HAR File Viewer HAR File Viewer with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow helpers. ↗
HAR to cURL Converter HAR to cURL Converter with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow hel… ↗
OAuth Scope Formatter OAuth Scope Formatter with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow hel… ↗
Bearer Token Parser Bearer Token Parser with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow helpe… ↗
Basic Auth Decoder Basic Auth Decoder with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow helper… ↗
API Key Header Builder API Key Header Builder with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow he… ↗